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LT1963A from LT

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LT1963A

Manufacturer: LT

1.5A, Low Noise, Fast Transient Response LDO Regulators

Partnumber Manufacturer Quantity Availability
LT1963A LT 342 In Stock

Description and Introduction

1.5A, Low Noise, Fast Transient Response LDO Regulators The LT1963A is a low dropout (LDO) voltage regulator manufactured by Linear Technology (now part of Analog Devices). Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Output Voltage Range:** 1.21V to 20V (adjustable)  
- **Output Current:** 1.5A  
- **Dropout Voltage:** 300mV (typical at 1.5A load)  
- **Input Voltage Range:** Up to 20V  
- **Line Regulation:** 0.02% (typical)  
- **Load Regulation:** 0.05% (typical)  
- **Quiescent Current:** 1mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Options:** TO-220, DD-Pak, SOT-223, MSOP-8  

### **Descriptions:**  
- The LT1963A is a high-performance LDO regulator designed for applications requiring low noise, fast transient response, and high efficiency.  
- It features low dropout voltage, making it suitable for battery-powered systems.  
- The regulator includes protection features such as reverse battery protection, current limiting, and thermal shutdown.  

### **Features:**  
- **Low Dropout Voltage:** 300mV at full load  
- **Low Noise:** 40μVRMS (10Hz to 100kHz)  
- **Fast Transient Response**  
- **Adjustable Output Voltage**  
- **Stable with Low-ESR Ceramic Capacitors (≥10μF)**  
- **Reverse Battery Protection**  
- **Thermal Shutdown & Current Limit Protection**  
- **Wide Input Voltage Range**  

This information is based on the manufacturer's datasheet for the LT1963A.

Application Scenarios & Design Considerations

1.5A, Low Noise, Fast Transient Response LDO Regulators

Alternative Part Number

  • TPS7A4700 --: Low-noise 1A LDO with very low dropout, comparable to the LT1963A in noise and PSRR performance; pin-compatible in many designs and widely available.
  • ADP7142 --: 200 mA low-dropout regulator with low noise and high PSRR, suitable replacement for LT1963A in noise-sensitive analog supplies.
  • LM2941 --: Adjustable 1A LDO regulator with similar current capability and dropout characteristics, a common drop-in style alternative for LT1963A applications.

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